<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>

  <body>
    <div class="box">
      <!-- <img src="./img/1.jpeg" alt="" /> -->
    </div>

    <script src="./js/index.js"></script>
    <script>
      // 实例化一个红绿灯类
      new Light('.box');
      new Light('.box');
    </script>
  </body>
</html>
